Alleviation of salinity stress in chickpea byRhizobium inoculation or nitrate supply

Rao, D. L. N.; Sharma, Pushp

doi:10.1007/bf02913989

Cited by 18 publications

(10 citation statements)

References 8 publications

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“…A similar benefit has been previously found for the root nodule symbiosis between Bradyrhizobium spp. (Cajanus) with pigeon pea and Rhizobium loti with chickpea (Rao and Sharma 1995;Subbarao et al 1990). …”

Section: Discussionmentioning

confidence: 98%

Enhancement of rice production using endophytic strains of Rhizobium leguminosarum bv. trifolii in extensive field inoculation trials within the Egypt Nile delta

Yanni

Dazzo

2010

Plant Soil

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This study assessed the ability of biofertilizer inoculants containing Rhizobium leguminosarum bv. trifolii to enhance production of rice (Oryza sativa L.) under actual agricultural conditions in the Nile delta. Large-scale field experiments evaluated 5 rice varieties inoculated with 7 endophytic rhizobial strains during 5 growing seasons, including at sites ranked as the world's highest in rice production. Inoculation with single strains or multi-strain consortia significantly increased grain yield in 19 of the 24 trials. By combining superior rhizobial inoculants with agricultural extension training, grain yield increased up to 47% in farmers' fields, with an average increase of 19.5%. Data on rice straw production, harvest index and the agronomic fertilizer N-use efficiency also indicated positive agronomic benefits of rhizobial inoculation. These results establish the merit of deploying our biofertilization strategy using selected rhizobial strains to promote rice production capacity while reducing the need for additional chemical Nfertilizer inputs to maintain agricultural sustainability and acceptable production economy. Technology transfer of this important translational research can significantly help to alleviate hunger and meet the nutritional needs of many people in developing countries.

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Section: Discussionmentioning

confidence: 98%

Enhancement of rice production using endophytic strains of Rhizobium leguminosarum bv. trifolii in extensive field inoculation trials within the Egypt Nile delta

Yanni

Dazzo

2010

Plant Soil

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“…Consequently, Cl ‐ /Na + ratios in the shoots of plants provided with inorganic N were twice those of plants relying on N 2 ‐fixation (Table 3). Other studies, however, failed to find differences in shoot Na + concentration between plants reliant on mineral‐N or fixed‐N (Rao & Sharma 1995b; Baalbaki et al . 2000).…”

Section: Vegetative Growthmentioning

confidence: 99%

“…2000). One study evaluated Pusa‐256 inoculated with seven different rhizobial strains (Rao & Sharma 1995b), while the other (Baalbaki et al . 2000) involved two chickpea cultivars and two rhizobial strains.…”

Section: Vegetative Growthmentioning

confidence: 99%

Salt sensitivity in chickpea

Flowers

Gaur

Gowda

et al. 2010

Plant Cell & Environment

212

134

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The growth of chickpea (Cicer arietinum L.) is very sensitive to salinity, with the most susceptible genotypes dying in just 25 mM NaCl and resistant genotypes unlikely to survive 100 mM NaCl in hydroponics; germination is more tolerant with some genotypes tolerating 320 mM NaCl. When growing in a saline medium, Cl -, which is secreted from glandular hairs on leaves, stems and pods, is present in higher concentrations in shoots than Na + . Salinity reduces the amount of water extractable from soil by a chickpea crop and induces osmotic adjustment, which is greater in nodules than in leaves or roots. Chickpea rhizobia show a higher 'free-living' salt resistance than chickpea plants, and salinity can cause large reductions in nodulation, nodule size and N2-fixation capacity. Recent screenings of diverse germplasm suggest significant variation of seed yield under saline conditions. Both dominance and additive gene effects have been identified in the effects of salinity on chickpea and there appears to be sufficient genetic variation to enable improvement in yield under saline conditions via breeding. Selections are required across the entire life cycle with a range of rhizobial strains under salt-affected, preferably field, conditions.

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“…A progressive reduction in the application of agrochemicals in farming practices without compromising on the yield or quality of the crops and advancement of new generation technologies can be the only possible sustainable alternative. During the last couple of decades, the recent biotechnological advancements in agriculture have unlocked new avenues for the augmentation of productivity in a sustainable manner and have made possible exploitation of soil microorganisms for improving the crop health ) and mitigating environmental stresses (Rao and Sharma 1995;Tank and Saraf 2010).…”

Section: Discussionmentioning

confidence: 99%